HIGH PERFORMANCE CURRENT MODE POWER SWITCH WITH ZERO CURRENT DETECTION
DESCRIPTION
The UTC US3702 is an integrated PWM controller and
SenseFET specifically designed for switching operation with
minimal external components. The UTC US3702 is designed
to provide several special enhancements to satisfy the needs, for
example, Power-Saving mode for low standby power (<0.3W),
Frequency Hopping , Constant Output Power Limiting , Slope
Compensation ,Over Current Protection (OCP), Over Voltage
Protection (OVP), Over Load Protection (OLP), Under Voltage
Lock Out (UVLO), Short Circuit Protection (SCP) , Over
Temperature Protection (OTP) etc. IC will be shutdown or can
auto-restart in situations.
FEATURES
* Internal high voltage SenseFET(700V)
* Frequency hopping for Improved EMI performance.
* Lower than 0.3W standby power design
* Linearly decreasing frequency to 26KHz during light load
* Internal soft start
* Internal slope compensation
* Constant power limiting for universal AC input range
* Gate output maximum voltage clamp(15V)
* Over temperature protection
* Overload protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-cycle current limiting
* Under voltage lock out
* Short circuit protection |
